Fastening & Sealing
Bolts & Fasteners
Bolts, nuts, washers and related fasteners for flange connections and equipment installation.
Materials
Reference Standards
Industries
Applications
Selection and procurement checks
Check flange bolting as a set of bolts or studs, nuts and associated components. Thread, length, material grade and surface treatment should follow the specified standard and match flange holes, gasket and connection thickness.
Information required for quotation
- Bolt or stud form, thread size and length
- Nut specification, material grades and surface treatment
- Quantity per set, mating flange drawing and marking requirements
The materials and standards listed on this page identify reference procurement options. They do not imply that different grades, standards or product forms are interchangeable. Specify the governing standard, material grade, dimensions and inspection requirements in your purchase list; the agreed technical documents define the supply scope.
Include the quantity for each size, delivery destination, required arrival date, and any packaging, marking or documentation requirements so that the supply scope and delivery arrangements can be checked item by item.
Quality and inspection documents
Please state whether the order requires a Mill Test Certificate (MTC/MTR), an EN 10204 type 3.1 inspection certificate, heat or batch traceability, or other inspection records. The document type, applicable material and availability must be confirmed for the specific order. EN 10204 type 3.2 involves additional independent inspection requirements and must be agreed separately before supply.
View quality document information